Side by side

Nodus Sector II Dive GMTvsSeiko Astron

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Sector II Dive GMT
NodusSector II Dive GMT
MSRP $575
Astron
SeikoAstron
MSRP $2,500

At a glance

15 of 29 specs differ
Diameter
Sector II Dive GMT38mm
Astron42mm
Power Reserve
Sector II Dive GMT41h
Astron40h
Water Resistance
Sector II Dive GMT100m
Astron100m
MSRP
Sector II Dive GMT$575
Astron$2,500

Full specifications

Case

6 specs
Category
Diver
GMT
Diameter
38mm
42mm
Thickness
11.9mm
12.4mm
Lug-to-Lug
47mm
49.5mm
Lug Width
20mm
14mm
Material
Stainless Steel
Titanium

Crystal & Dial

4 specs
Crystal Shape
Box
Flat
AR Coating
Yes
Super-clear coating
Dial Color
Black
Lume
Swiss Super-LumiNova® BGW9 Grade A
LumiBrite on hands and index(es)

Movement

4 specs
Caliber
TMI NH34 (GMT)
5X83
Type
Automatic
Quartz
Power Reserve
41h
40h
Jewels
24
14

Pricing

1 specs
MSRP
$575
$2,500

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Nodus Sector II Dive GMT

Owners widely praise the Nodus Sector II Dive GMT for its solid build, bracelet, and fit and finish for the price, with reviewers noting its well-executed finishing featuring alternating brushed and polished surfaces. The regulated Seiko NH34 movement is reported to run at +5 seconds per day. Some owners desire a Miyota 9075 movement and lume on the GMT hand, and a reviewer finds the 120-click dive bezel less ideal for GMT functions than a bi-directional 48-click GMT bezel, while the dial's dense Arabic numerals can be overwhelming for some despite good legibility. On balance, owners and reviewers rate the Nodus Sector II Dive GMT highly for its attractive design and build quality at its price point.

Seiko Astron

Owners widely praise the Seiko Astron for its spectacular technology, solar-powered quartz movement, and GPS time synchronization, making it a convenient grab-and-go option. The watch is frequently noted for its comfortable and lightweight titanium build, with some models featuring well-finished cases and robust ceramic bezels. Reviewers and owners alike highlight the dial's dynamic and shiny appearance, with textured hour markers and high-contrast edges. Accuracy is generally considered good, with figures ranging from +/- 15 seconds per month to within 1/2 second per day, easily corrected by GPS signal. However, some owners note that DST requires manual adjustment and that automatic time syncing depends on proximity to radio wave towers. The price point is a concern for some, who feel it competes with luxury watches without the same aesthetic appeal. One owner pointed out minimal lume and a slight misalignment of the minute hand on their model.

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